Narrow QRS tachycardia in a patient with mechanical mitral prosthesis

0 1 308 8 months ago
This ECG is from a patient with mitral mechanical prosthesis. She has incessant tachycardia for the last 3 weeks. Heart rate is around 140 bpm despite Metoprolol 200 mg/day and amiodarone 200 mg / day . Ecg shows 2/1 atrial tachycardia or flutter ( see red arrows)

Last seen:  22 days ago

cardiologist, electrophysiologist.

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